1
|
Douarre M, Martí‐Centelles V, Rossy C, Pianet I, McClenaghan ND. Regulation of Macrocycle Shuttling Rates in [2]Rotaxanes by Amino‐Acid Speed Bumps in Organic–Aqueous Solvent Mixtures. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000997] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Maxime Douarre
- Institut des Sciences Moléculaires, CNRS UMR 5255 University of Bordeaux 33405 Talence France
| | - Vicente Martí‐Centelles
- Institut des Sciences Moléculaires, CNRS UMR 5255 University of Bordeaux 33405 Talence France
| | - Cybille Rossy
- Institut des Sciences Moléculaires, CNRS UMR 5255 University of Bordeaux 33405 Talence France
| | - Isabelle Pianet
- IRAMAT, CNRS UMR 5060, Maison de l'Archéologie Université Bordeaux Montaigne 33607 Pessac France
| | - Nathan D. McClenaghan
- Institut des Sciences Moléculaires, CNRS UMR 5255 University of Bordeaux 33405 Talence France
| |
Collapse
|
2
|
Morsby JJ, Dharmarwardana M, McGarraugh H, Smith BD. Supramolecular optimization of the visual contrast for colorimetric indicator assays that release resorufin dye. Chem Commun (Camb) 2020; 56:9296-9299. [PMID: 32666982 PMCID: PMC7429340 DOI: 10.1039/d0cc03551c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A tetralactam macrocycle acts as a novel supramolecular adjuvant to capture a released resorufin dye and create a higher contrasting yellow/blue color change for enhanced naked eye interpretation of a colorimetric indicator assay.
Collapse
Affiliation(s)
- Janeala J Morsby
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN 46556, USA.
| | - Madushani Dharmarwardana
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN 46556, USA.
| | - Hannah McGarraugh
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN 46556, USA.
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN 46556, USA.
| |
Collapse
|
3
|
Chen XL, Shen YJ, Gao C, Yang J, Sun X, Zhang X, Yang YD, Wei GP, Xiang JF, Sessler JL, Gong HY. Regulating the Structures of Self-Assembled Mechanically Interlocked Moleculecular Constructs via Dianion Precursor Substituent Effects. J Am Chem Soc 2020; 142:7443-7455. [PMID: 32216311 DOI: 10.1021/jacs.9b13473] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Substituent effects play critical roles in both modulating reaction chemistry and supramolecular self-assembly processes. Using substituted terephthalate dianions (p-phthalic acid dianions; PTADAs), the effect of varying the type, number, and position of the substituents was explored in terms of their ability to regulate the inherent anion complexation features of a tetracationic macrocycle, cyclo[2](2,6-di(1H-imidazol-1-yl)pyridine)[2](1,4-dimethylenebenzene) (referred to as the Texas-sized molecular box; 14+), in the form of its tetrakis-PF6- salt in DMSO. Several of the tested substituents, including 2-OH, 2,5-di(OH), 2,5-di(NH2), 2,5-di(Me), 2,5-di(Cl), 2,5-di(Br), and 2,5-di(I), were found to promote pseudorotaxane formation in contrast to what was seen for the parent PTADA system. Other derivatives of PTADA, including those with 2,3-di(OH), 2,6-di(OH), 2,5-di(OMe), 2,3,5,6-tetra(Cl), and 2,3,5,6-tetra(F) substituents, led only to so-called outside binding, where the anion interacts with 14+ on the outside of the macrocyclic cavity. The differing binding modes produced by the choice of PTADA derivative were found to regulate further supramolecular self-assembly when the reaction components included additional metal cations (M). Depending on the specific choice of PTADA derivatives and metal cations (M = Co2+, Ni2+, Zn2+, Cd2+, Gd3+, Nd3+, Eu3+, Sm3+, Tb3+), constructs involving one-dimensional polyrotaxanes, outside-type rotaxanated supramolecular organic frameworks (RSOFs), or two-dimensional metal-organic rotaxane frameworks (MORFs) could be stabilized. The presence and nature of the substituent were found to dictate which specific higher order self-assembled structure was obtained using a given cation. In the specific case of the 2,5-di(OH), 2,5-di(Cl), and 2,5-di(Br) PTADA derivatives and Eu3+, so-called MORFs with distinct fluorescence emission properties could be produced. The present work serves to illustrate how small changes in guest substitution patterns may be used to control structure well beyond the first interaction sphere.
Collapse
Affiliation(s)
- Xu-Lang Chen
- College of Chemistry, Beijing Normal University, No. 19, Xinwai street, Beijing 100875, People's Republic of China
| | - Yun-Jia Shen
- College of Chemistry, Beijing Normal University, No. 19, Xinwai street, Beijing 100875, People's Republic of China
| | - Chao Gao
- College of Chemistry, Beijing Normal University, No. 19, Xinwai street, Beijing 100875, People's Republic of China
| | - Jian Yang
- College of Chemistry, Beijing Normal University, No. 19, Xinwai street, Beijing 100875, People's Republic of China
| | - Xin Sun
- College of Chemistry, Beijing Normal University, No. 19, Xinwai street, Beijing 100875, People's Republic of China
| | - Xin Zhang
- College of Chemistry, Beijing Normal University, No. 19, Xinwai street, Beijing 100875, People's Republic of China
| | - Yu-Dong Yang
- College of Chemistry, Beijing Normal University, No. 19, Xinwai street, Beijing 100875, People's Republic of China
| | - Gong-Ping Wei
- Institute of Chemistry, Chinese Academy of Sciences, Zhongguancunbeiyijie 2, Beijing 100190, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jun-Feng Xiang
- Institute of Chemistry, Chinese Academy of Sciences, Zhongguancunbeiyijie 2, Beijing 100190, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jonathan L Sessler
- Department of Chemistry, Shanghai University, Shanghai 200444, People's Republic of China.,Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Han-Yuan Gong
- College of Chemistry, Beijing Normal University, No. 19, Xinwai street, Beijing 100875, People's Republic of China
| |
Collapse
|
4
|
|
5
|
Luna-Ixmatlahua RA, Carrasco-Ruiz A, Cervantes R, Vela A, Tiburcio J. An Anionic Ring Locked into an Anionic Axle: A Metastable Rotaxane with Chemically Activated Electrostatic Stoppers. Chemistry 2019; 25:14042-14047. [PMID: 31468580 DOI: 10.1002/chem.201902735] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/28/2019] [Indexed: 02/03/2023]
Abstract
The use of the electrostatic stoppers concept in the field of mechanically interlocked molecules is reported; these stoppers are chemically sensitive end groups on a linear guest molecule that allows for the conversion of a pseudo-rotaxane species into a rotaxane complex by a change in the medium acidity. The chemical stimulus causes the appearance of negative charges on both ends of the linear component, passing from cationic to anionic, and causing a significant ring-to-axle electrostatic repulsion. This phenomenon has two different and simultaneous effects: 1) destabilizes the complex as a consequence of confining an anionic ring into an anionic axle, and 2) increases the dissociation energy barrier, thus impeding ring extrusion. This newly formed metastable rotaxane species is resistant to solvent and temperature effects and performs as a two-state degenerated molecular shuttle in solution.
Collapse
Affiliation(s)
- Rubi A Luna-Ixmatlahua
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| | - Anayeli Carrasco-Ruiz
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| | - Ruy Cervantes
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| | - Alberto Vela
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| | - Jorge Tiburcio
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| |
Collapse
|
6
|
Akae Y, Sogawa H, Takata T. Effective Synthesis and Modification of α‐Cyclodextrin‐Based [3]Rotaxanes Enabling Versatile Molecular Design. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900362] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yosuke Akae
- Department of Chemical Science and Engineering Tokyo Institute of Technology 2–12–1, O‐okayama, Meguro‐ku 152–8552 Tokyo Japan
| | - Hiromitsu Sogawa
- Department of Chemical Science and Engineering Tokyo Institute of Technology 2–12–1, O‐okayama, Meguro‐ku 152–8552 Tokyo Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering Tokyo Institute of Technology 2–12–1, O‐okayama, Meguro‐ku 152–8552 Tokyo Japan
| |
Collapse
|
7
|
Li DH, Smith BD. Molecular recognition using tetralactam macrocycles with parallel aromatic sidewalls. Beilstein J Org Chem 2019; 15:1086-1095. [PMID: 31164945 PMCID: PMC6541352 DOI: 10.3762/bjoc.15.105] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/02/2019] [Indexed: 01/16/2023] Open
Abstract
This review summarizes the supramolecular properties of tetralactam macrocycles that have parallel aromatic sidewalls and four NH residues directed into the macrocyclic cavity. These macrocycles are versatile hosts for a large number of different guest structures in water and organic solvents, and they are well-suited for a range of supramolecular applications. The macrocyclic cavity contains a mixture of polar functional groups and non-polar surfaces which is reminiscent of the amphiphilic binding pockets within many proteins. In water, the aromatic surfaces in the tetralactam cavity drive high affinity due the hydrophobic effect and the NH groups provide secondary interactions that induce binding selectivity. In organic solvents, the supramolecular factors are reversed; the polar NH groups drive high affinity and the aromatic surfaces provide the secondary interactions. In addition to an amphiphilic cavity, macrocyclic tetralactams exhibit conformational flexibility, and the combination of properties enables them to be effective hosts for a wide range of guest molecules including organic biscarbonyl derivatives, near-infrared dyes, acenes, precious metal halide complexes, trimethylammonium ion-pairs, and saccharides.
Collapse
Affiliation(s)
- Dong-Hao Li
- Department of Chemistry and Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| |
Collapse
|
8
|
Abstract
Molecular conjugation refers to methods used in biomedicine, advanced materials and nanotechnology to link two partners - from small molecules to large and sometimes functionally complex biopolymers. The methods ideally have a broad structural scope, proceed under very mild conditions (including in H2O), occur at a rapid rate and in quantitative yield with no by-products, enable bioorthogonal reactivity and have zero toxicity. Over the past two decades, the field of click chemistry has emerged to afford us new and efficient methods of molecular conjugation. These methods are based on chemical reactions that produce permanently linked conjugates, and we refer to this field here as covalent click chemistry. Alternatively, if molecular conjugation is undertaken using a pair of complementary molecular recognition partners that associate strongly and selectively to form a thermodynamically stable non-covalent complex, then we refer to this strategy as non-covalent click chemistry. This Perspective is concerned with this latter approach and highlights two distinct applications of non-covalent click chemistry in molecular conjugation: the pre-assembly of molecular conjugates or surface-coated nanoparticles and the in situ capture of tagged biomolecular targets for imaging or analysis.
Collapse
Affiliation(s)
- Cynthia L Schreiber
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, USA
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, USA
| |
Collapse
|
9
|
Fluorescent Thienothiophene-Containing Squaraine Dyes and Threaded Supramolecular Complexes with Tunable Wavelengths between 600⁻800 nm. Molecules 2018; 23:molecules23092229. [PMID: 30200488 PMCID: PMC6225225 DOI: 10.3390/molecules23092229] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 08/28/2018] [Accepted: 08/31/2018] [Indexed: 12/13/2022] Open
Abstract
A new family of fluorescent thiophene and thienothiophene-containing squaraine dyes is described with tunable wavelengths that cover the absorption/emission range of 600–800 nm. The deep-red and near-infrared fluorescent compounds were easily prepared by simple synthesis and purification methods. Spectral studies showed that each squaraine was rapidly encapsulated by a tetralactam macrocycle, with nanomolar affinity in water, to produce a threaded supramolecular complex with high chemical stability, increased fluorescence quantum yield, and decreased fluorescence quenching upon dye self-aggregation. Energy transfer within the supramolecular complex permitted multiplex emission. That is, two separate dyes with fluorescence emission bands that match the popular Cy5 and Cy7 channels, could be simultaneously excited with a beam of 375 nm light. A broad range of practical applications is envisioned in healthcare diagnostics, microscopy, molecular imaging, and fluorescence-guided surgery.
Collapse
|
10
|
Sato H, Aoki D, Takata T. Which One is Bulkier: The 3,5-Dimethylphenyl or the 2,6-Dimethylphenyl Group? Development of Size-Complementary Molecular and Macromolecular [2]Rotaxanes. Chem Asian J 2018; 13:785-789. [PMID: 29392843 DOI: 10.1002/asia.201800170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Indexed: 11/10/2022]
Abstract
We developed novel size-complementary molecular and macromolecular rotaxanes using a 2,6-dimethylphenyl terminal group as the axle-end-cap group in dibenzo-24-crown-8-ether (DB24C8)-based rotaxanes, where the 2,6-dimethylphenyl group was found to be less bulky than the 3,5-dimethylphenyl group. A series of molecular and macromolecular [2]rotaxanes that bear a 2,6-dimethylphenyl group as the axle-end-cap were synthesized using unsubstituted and fluorine-substituted DB24C8. Base-induced decomposition into their constituent components confirmed the occurrence of deslipping, which supports the size-complementarity of these rotaxanes. The deslipping rate was independent of the axle length but dependent on the DB24C8 substituents. A kinetic study indicated the rate-determining step was that in which the wheel is getting over the end-cap group, and deslipping proceeded via a hopping-over mechanism. Finally, the present deslipping behavior was applied to a stimulus-degradable polymer as an example for the versatile utility of this concept in the context of stimulus-responsive materials.
Collapse
Affiliation(s)
- Hiroki Sato
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Daisuke Aoki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan.,JST-CREST, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan
| |
Collapse
|
11
|
Abstract
Strong and stable under tension?
Strong and stable under tension? In this review we present the recent efforts investigating the mechanochemical properties of interlocked structures by atomic force microscopy and polymer mechanochemistry.
Collapse
Affiliation(s)
- Guillaume De Bo
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| |
Collapse
|
12
|
Riss-Yaw B, Clavel C, Laurent P, Coutrot F. The relationship between the conformational degree of freedom of template-containing threads and slippage in the formation of [2]rotaxane building blocks. Chem Commun (Camb) 2017; 53:10874-10877. [DOI: 10.1039/c7cc06598a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Slippage is correlated with the degree of freedom of the molecular thread to be encircled. The straighter the thread, the faster is the slippage.
Collapse
Affiliation(s)
- B. Riss-Yaw
- Supramolecular Machines and ARchitectures Team
- Institut des Biomolécules Max Mousseron (IBMM)
- Univ. Montpellier
- UMR 5247 CNRS
- ENSCM
| | - C. Clavel
- Supramolecular Machines and ARchitectures Team
- Institut des Biomolécules Max Mousseron (IBMM)
- Univ. Montpellier
- UMR 5247 CNRS
- ENSCM
| | - Ph. Laurent
- Supramolecular Machines and ARchitectures Team
- Institut des Biomolécules Max Mousseron (IBMM)
- Univ. Montpellier
- UMR 5247 CNRS
- ENSCM
| | - F. Coutrot
- Supramolecular Machines and ARchitectures Team
- Institut des Biomolécules Max Mousseron (IBMM)
- Univ. Montpellier
- UMR 5247 CNRS
- ENSCM
| |
Collapse
|